Snap on something?

pishta said
I think it shows an "EKG" of your ignition system, as cylinder pressure can change your spark plug output or something like that (Ask that one ignition maker guy....Taylor?) Did you get any of the leads?
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The only thing that is attached (hard wired) to the main box is a timing light and large alligator clip battery connectors.

halifaxhops said
You definitely need the leads to use it. Pretty cool tester. You might be able to find a manual here.
Internet Archive Search: creator:"SUN Electric Corporation"
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